AOIP CALYS 150 Mode D'emploi page 171

In the "By comparison" method, select "Reference
measurement" method: "Channel 2" or "Keyboard entry".
For the "By comparison" calibration method, in the drop-
down list, select "Four Isotech", "Pressure generator" or
"Other (manual control)".
If "Reference measurement" via channel 2 is selected,
select "Measurement function" and confirm with Enter.
Calibration procedures
For the "Standard generator" calibration method, in the
drop-down list, select "Channel 2" or Other (manual
control)
If "Standard generator" via channel 2 is selected, select
"Measurement function" and confirm with Enter.
If "Device measurement" via channel 1 is selected,
select "Measurement function" and confirm with
Enter.
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